Abstract
Identification of adaptable and stable genotypes is an important aspect of applied crop breeding which can insure sustainable crop production. Adaptability studies in tomato is an essential part of breeding for adequate evaluation of genotypes accomplished through environments (years/locations). A set of forty tomato accessions of diverse origin were tested at Swabi and Haripur locations to assess their performance. The experiment was carried out in randomized complete block design with three replications. Data were recorded on 50% flowering, days to fruiting and yield per hectare. Genotype (G), environment (E) and GEI share in total sum of squares were also studied. Significant (p≤0.01) differences were observed among the accessions, environments (locations) and G × E interaction means for majority traits, which assured greater genetic variability among the accessions due to their divergent genetic make-up, as well as environments. On average, the accessions showed best performance in Swabi location than Haripur for yield and duration parameters. Overall, the promising accessions could be further explored for improvement in tomato fruit yield. Keywords: Genotypes; Environments; Genotype-by-environment interaction http://dx.doi.org/10.19045/bspab.2017.60068
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